code: def test_invalid(self) -> None:
      prop = bcpr.Regex("^x*$")
  
      assert not prop.is_valid("xy")
  
      assert not prop.is_valid(None)
      assert not prop.is_valid(False)
      assert not prop.is_valid(True)
      assert not prop.is_valid(0)
      assert not prop.is_valid(1)
      assert not prop.is_valid(0.0)
      assert not prop.is_valid(1.0)
      assert not prop.is_valid(1.0 + 1.0j)
  
      assert not prop.is_valid(())
      assert not prop.is_valid([])
      assert not prop.is_valid({})
      assert not prop.is_valid(_TestHasProps())
      assert not prop.is_valid(_TestModel())
  
file_path: bokeh/tests/unit/bokeh/core/property/test_string_properties.py
imports: from __future__ import annotations
  import pytest
  from tests.support.util.api import verify_all
  from _util_property import _TestHasProps, _TestModel
  import bokeh.core.property.string
label_desc: Use image node_id 3 for calling the Test_Regex obj's underlying member method code with example usage: obj.test_invalid() without return types